know your flow: what’s normal?
Most people with a menstrual cycle lose somewhere between 30 and 80 milliliters of blood total over the course of their period — roughly two to six tablespoons, spread across two to seven days. That range is wider than most people expect, and so is the variation in coloyr, which can shift from bright red at the start to a darker burgundy or brown as flow slows. Changing a pad or tampon every three to six hours is typical on moderate days. The first one or two days tend to be the heaviest for most people, with flow tapering off toward the end of the cycle. None of this follows a perfectly predictable script from person to person or even cycle to cycle, which is why knowing your own baseline — rather than comparing yourself to anyone else — is what actually matters.
Heavy menstrual bleeding, clinically called menorrhagia, is generally defined as losing more than 80 milliliters per cycle, but since most people aren't measuring, there are more practical ways to recognize it.
Signs your flow may be too heavy
Soaking a pad or tampon in under an hour for two or more hours in a row
Regularly needing double protection to prevent leaking
Passing clots larger than a quarter
Bleeding lasting more than seven days
Fatigue, dizziness, or shortness of breath during your period
If any of those signs sound familiar, it's worth bringing up with a healthcare provider — not because something is necessarily wrong, but because heavy periods often have treatable underlying causes. Uterine fibroids, endometriosis, hormonal imbalances, thyroid conditions, and certain bleeding disorders can all contribute to heavier-than-normal flow, and most are very manageable once identified. There's also a wide range of treatment options! Your period doesn't have to disrupt your life, and consistently heavy flow is a reason to ask questions — not to simply push through.
